What is the American Conference of Governmental Industrial Hygienists (ACGIH) recommended exposure limit for Mercury?
TIME-WEIGHTED AVERAGE (TLV-TWA): 0.025 mg/m3 as mercury (Hg), Skin – Carcinogenicity Designation A4 TLV BASIS – CRITICAL EFFECT(S) : CNS (central nervous system); Kidney; Reproductive. CARCINOGENICITY DESIGNATION A4 – Not Classifiable as a Human Carcinogen: Inadequate data on which to classify the substance as a human and/or animal carcinogen. BIOLOGICAL EXPOSURE INDICES (BEIs): The ACGIH has adopted a BEI for this chemical. BEIs provide an indication of worker exposure by measuring the chemical or its breakdown products in the body or by measuring biochemical changes resulting from exposure to the chemical. Consult the BEI documentation for further information. “SKIN” NOTATION: Contact with skin, eyes, mucous membranes can contribute to the overall exposure and may invalidate the TLV. Consider measures to prevent absorption by these routes. NOTE: In many jurisdictions, exposure limits are similar to the ACGIH TLVs. Since the manner in which exposure limits are established, interpreted
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